[Python-Dev] Preventing recursion core dumps (original) (raw)

Moshe Zadka Moshe Zadka moshez@math.huji.ac.il
Fri, 11 Aug 2000 17:13:13 +0300 (IDT)

On Fri, 11 Aug 2000, Guido van Rossum wrote:

It would be good if there was a way to sense the remaining available stack, even if it wasn't portable. Any Linux experts out there?

I'm far from an expert, but I might have an idea. The question is: must this works for embedded version of Python, or can I fool around with main()?

Here's the approach:

In main(), get the address of some local variable. Call this min
Call getrlimit, and see the stack size. Call max = min+ (<stack size )
When checking for "too much recursion", take the address of a local variable and compare it against max. If it's higher, stop.